Involves a chain of reasoning that goes something like this: "I am a good and normal mainstream sort of White person. I am not a racist, because racists are bad and marginal people. Therefore, if you understood my words to be racist, you must be mistaken. I may have used language that would be racist in the mouth of a racist person, but if I did so, I was joking. If you understood my meaning to be racist, not only do you insult me, but you lack a sense of humor, and you are oversensitive." Notice that this entire chain of reasoning makes the speaker the sole authority over what her worlds shall mean.